2 layers142.9 × 114.9 mm
SofleKeyboard
josefadamcik/SofleKeyboard
A split keyboard based on Lily58, Crkbd and Helix keyboards
114 parts2.6k
2 layers92.6 × 150.2 mm
Calculator
M0HID/Calculator- Size
- 92.6 × 150.2 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 114
- Nets
- 96
- Pads
- 288
- Tracks, vias
- 484, 65
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 8.99 (file 20241129)
- Created
- 13 Jan 2026
- Updated
- 5 Mar 2026
Overview
Calculator is an open-source printed circuit board by M0HID, from the M0HID/Calculator repository on GitHub. It is a 2-layer board of 92.6 × 150.2 mm with 114 parts on 96 nets, routed with 484 tracks and 65 vias.
Its parts include 54 diodes, 54 switches, 3 ICs, 2 resistors and 1 connector. It belongs with the ESP32 boards of this library.
Parts
114| Qty | Value | Footprint | References |
|---|---|---|---|
| 54 | D | Diode_SMD:D_SOD-123 | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +38 |
| 54 | SW_Push_45deg | switchs:2pinsilent | SW1, SW2, SW10, SW11, SW12, SW13, SW14, SW15, SW16, SW17, SW18, SW19, SW20, SW21, SW22, SW23 +38 |
| 2 | 100k | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R1, R2 |
| 1 | Conn_01x02_Pin | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J1 |
| 1 | MCP23017_SO | Package_SO:SOIC-28W_7.5x17.9mm_P1.27mm | U3 |
| 1 | TFT_320x240 | lcd:TFT-320x240 | U2 |
| 1 | XIAO-ESP32-S3-DIP | xiao:XIAO-ESP32S3-SMD | U1 |
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Questions
How big is the Calculator PCB?
It measures 92.6 × 150.2 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Calculator use?
114 parts. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Calculator KiCad files?
From the M0HID/Calculator repository on GitHub, at the commit this page was made from: the board is calculator.kicad_pcb and its schematic calculator.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Calculator design in my own project?
Its repository states no licence, so its author keeps all rights: ask M0HID before reusing the design.